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Subtract 14/8 from 25/21

1st number: 1 4/21, 2nd number: 1 6/8

25/21 - 14/8 is -47/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 8 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 21 × 8 = 168,
    25/21 = 25 × 8/21 × 8 = 200/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    14/8 = 14 × 21/8 × 21 = 294/168
  4. Subtract the two like fractions:
    200/168 - 294/168 = 200 - 294/168 = -94/168
  5. After reducing the fraction, the answer is -47/84

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